Home / 82,291.04-123,436.56-19,961.52

Finding the Fourth Proportional to 82,291.04, 123,436.56 and 19,961.52

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Solution

The fourth proportional to 82,291.04, 123,436.56 and 19,961.52 is: 29,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,291.04 : 123,436.56 = 19,961.52 : x
  2. Step 2: Convert to fraction form
    82,291.04/123,436.56 = 19,961.52/x
  3. Step 3: Cross multiply
    82,291.04x = 123,436.56 × 19,961.52
  4. Step 4: Simplify right side
    82,291.04x = 2,463,981,361.17
  5. Step 5: Solve for x
    x = 2,463,981,361.17/82,291.04
  6. Step 6: Final answer
    x = 29,942.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.